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Commit Graph

639 Commits

Author SHA1 Message Date
Søren Schmidt
6a90d9750d Finally a start at sharing the kdb controller routines between
syscons and psm, curtesy Kazutaka Yokota with minor changes by
me. This contains an update of the psm driver as well.
This also fixes the breakage that I introduced to the psm driver by
making syscons poll for keyboard events in the atempt to fix the
hanging keyboard problem.

It works perfectly for me, and I'd like to hear from all that
have had keyboard/ps/2 mouse problems if this is the cure...

Submitted by:	 Kazutaka YOKOTA (yokota@zodiac.mech.utsunomiya-u.ac.jp)
1996-11-14 22:19:17 +00:00
Bruce Evans
750059bbc5 Don't fiddle with RTS if RTS flow control is off. This gives applications
almost complete control over RTS (control of its initial value is still
missing).

This fixes PR 1644 for sio.

The author of PR 1644 wants it in 2.1.6 and 2.2.  This may be safe since
the complications are only in rarely used cases that I hope I've covered.
1996-11-13 18:31:57 +00:00
Søren Schmidt
65e925d16f 1. Avoid a race in scclose(). tty.c has kludges so that the race is
actually harmless.

2. Fixed code to match comment in scintr().

3. Don't allow even root to take control of the machine when securelevel > 0.
   I've secured the accesses to PSL_IOPL in all drivers and asked pst to
   review it, but he seems to be busy.  Write access to /dev/kmem and
   other critival devices currently leaks across raisings of securelevel
   via open fd's, so there may as well be a similar leak for PSL_IOPL.

4. (Most important.)  Don't corrupt memory beyond the screen buffers if
   the cursor happens to be off the 80x25 screen when syscons starts.

5. Fix console cursor update (not perfect yet).
Submitted by:   bruce
~
1996-11-11 22:21:03 +00:00
Nate Williams
6620cf7868 Removed 'XT_KEYBOARD' option from syscons. Document new-style way of
getting the same behavior using the flags, which can be done inside of
UserConfig.  (Also document other syscons flags which were previously
undocumented).

Requested by:	bde
1996-11-11 22:01:56 +00:00
Nate Williams
a973755bfa Allow us to enable the 'XT_KEYBOARD' code using a configuration flag.
This allows the user to add modify syscons's configuration flags using
UserConfig that will allow older/quirky hardware (most notably older IBM
ThinkPad laptops) to work with the standard boot kernel.

Inspired by:	The Nomads
1996-11-10 16:44:13 +00:00
Søren Schmidt
10661203e7 Fix the hanging keyboard problem under Xaccel. Apprently we are loosing
an interrupt somewhere. The solution here is to check for keyboard
input each time the screen update timer ticks. Not pretty, but works.
1996-11-04 21:01:08 +00:00
Joerg Wunsch
bb6382fae2 Fix the broken EOF handling in the floppy driver. The most obvious
appearance of this bug was the malfunctioning -M option in GNU tar (it
worked only by explicitly specifying -L).

Reviewed by:	bde, and partially corrected accoring to his comments

Candidate for 2.2, IMHO even for 2.1.6.
1996-11-02 23:31:11 +00:00
Paul Traina
39daae723d add in CONSPEED option which controls console serial port speed 1996-11-02 02:26:06 +00:00
Satoshi Asami
e30f001135 More merge and update.
(1) deleted #if 0

    pc98/pc98/mse.c

(2) hold per-unit I/O ports in ed_softc

    pc98/pc98/if_ed.c
    pc98/pc98/if_ed98.h

(3) merge more files by segregating changes into headers.

  new file (moved from pc98/pc98):

    i386/isa/aic_98.h

  deleted:

    well, it's already in the commit message so I won't repeat the
    long list here ;)

Submitted by:	The FreeBSD(98) Development Team
1996-10-30 22:41:46 +00:00
Søren Schmidt
66e7fce7ac Use the calibrated/adjustable i8254 frequency `timer_freq' instead of
TIMER_FREQ.

Fixed missing splx() in scrn_timer().  The bug was harmless because of the
undocumented behaviour that the ipl is automatically restored for timeout
functions (see softclock()).  Perhaps we should depend on this behaviour.

Fixed the ddb fix in rev.1.176.  The in_debugger flag was no use because
it only works when the debugger is entered via the keyboard hotkey.  The
debugger may be entered for breakpoints and traps, and the console putc
routine has no way of knowing when it was, so the console putc routine
must (almost?) always remove the cursor image.

Not fixed: console switching in ddb doesn't work (ISTR it working), and
console 0 shouldn't be switched to for the debugger hotkey unless console
0 is /dev/console.

Fixed side effects from calling add_keyboard_randomness() in the console
getc routine by not calling it.  add_keyboard_randomness() currently
always reenables interrupts on 386's and 486's.  This is very bad if the
console getc routine is called from the debugger and the debugger was
entered with interrupts disabled.

Fixed preservation of initial screen and now-bogus comment about it.  It
was broken by setting the initial scr_buf to `buffer' instead of Crtat.
`buffer' was full of nulls and the first scroll cleared everything above
the things written through syscons.

Submitted by:	bruce (bde@freebsd.org)
1996-10-26 20:16:58 +00:00
Bruce Evans
9272350657 Removed initialization of a variable that went away. Oops. 1996-10-26 00:11:57 +00:00
Bruce Evans
2d872b777d Print the clock calibration messages all on one (long) line again so
that they are easy to grep for.

Removed now-unused i586 counter variables.

Fixed some style bugs.
1996-10-25 13:46:21 +00:00
Paul Traina
dcb21864dc Remove SC_KBD_PROBE_WORKS option and replace it with a simple run-time flag
bit (0x0008) in the sc driver configuration line.  This way it's easy to
boink a generic kernel.

Also, document and place in an opt_ file the #define's for overriding which
serial port is the system console.
Approved by:	sos
1996-10-23 07:29:44 +00:00
Søren Schmidt
c070783c4b Changed mouse functionality a bit, now the pointer disappears if
there is keyboard input.
The mousepointer is shown again immediately if moved.

Also a function pointer used to install a userwritten extra
ioctl handler (sc_user_ioctl). This way its is possible to
install user defined videomodes etc etc. No further changes
should be in the kernel.
1996-10-18 18:51:37 +00:00
Søren Schmidt
b5ca878577 Corrected the setting of winsize on open().
Problem pointed out by David Nugent - davidn@blaze.net.au.
1996-10-15 20:27:07 +00:00
Bruce Evans
c20b324bb6 Put I*86_CPU defines in opt_cpu.h. 1996-10-09 19:47:44 +00:00
Bruce Evans
14f3567a32 Don't claim the console when the driver is disabled. The getc/putc
part of the console driver usually works when the driver is disabled,
but the normal read/write part doesn't (it caused a panic).
1996-10-09 15:24:21 +00:00
Jordan K. Hubbard
0c8c5f852a scresume erroneously used before declared. Move the function
rather than add another APM ifdef just for the forward decl.
[Boy, sure a lot of warnings in here!]
1996-10-03 00:42:27 +00:00
Søren Schmidt
4a8aeffeb2 Fixed the userconfig problem (and one with ddb as well).
The rudimentary support for a splash page is there, and works, it
just needs a splash page...
1996-10-02 22:00:38 +00:00
Søren Schmidt
d58801b2ee Fixed the "missing updates" reported by ache.
Moved a little closer to having a splash page capability.
1996-10-01 23:24:09 +00:00
Jordan K. Hubbard
10dce6c9f3 #ifdef another instance of toggle_splash_screen() which Soren missed. 1996-10-01 07:38:14 +00:00
Søren Schmidt
ebe3b2aabd Dont make splash screen the default :) 1996-09-30 23:10:35 +00:00
Søren Schmidt
a221620c79 Fix a couble of nasties regarding mouse pointer and different
resolutions.
Allow middle mouse button to be used for pasting.
Also added the beginnings of support for a splash page.
1996-09-30 23:00:58 +00:00
Bruce Evans
92d0aa20dc Work around UMC8669F and Startech UART bugs by not writing to the
divisor latch registers if the registers wouldn't change.

Use the default console cfcr setting while setting the divisor
latch registers for console i/o.  Input may be messed up by
transiently changing the cfcr.

Use a usual cfcr setting while setting the divisor latch registers
in the probe.  This shouldn't matter, but this is not the place to
test the UART's handling of 5 bit words.

Removed a stale devfs comment.
1996-09-30 12:22:27 +00:00
Bruce Evans
831031ce00 Attached simple external ddb commands show rtc', show pgrpdump'
and `show cbstat'.  The pgrpdump code was previously controlled by
`#ifdef DEBUG'.
1996-09-14 10:53:48 +00:00
Bruce Evans
daed6ffd24 Changed cncheckc() interface so that it is 8-bit clean - return -1
instead of 0 if there is no input.

syscons.c:
Added missing spl locking in sccncheckc().  Return the same value as
sccngetc() would.  It is wrong for sccngetc() to return non-ASCII, but
stripping the non-ASCII bits doesn't help.
1996-09-14 04:27:46 +00:00
Satoshi Asami
0e408c25a1 Another round of merge/update.
(1) Add PC98 support to apm_bios.h and ns16550.h, remove pc98/pc98/ic
(2) Move PC98 specific code out of cpufunc.h (to pc98.h)
(3) Let the boot subtrees look more alike

Submitted by:	The FreeBSD(98) Development Team
		<freebsd98-hackers@jp.freebsd.org>
1996-09-12 11:12:18 +00:00
Peter Wemm
9545a0eaa4 Hack workaround XFree86 switching failure when used with /dev/sysmouse
and xdm, possibly in general.

What was happening was that the server was doing a tcsetattr(.. TCSADRAIN)
on the mouse fd after a write.  Since /dev/sysmouse had a null t_oproc,
the drain failed with EIO.  Somehow this spammed XFree86 (!@&^#%*& binary
release!!), and the driver was left in a bogus state (ie: switch_in_progress
permanently TRUE).

The simplest way out was to implement a dummy scmousestart() routine to
accept any characters from the tty system and toss them into the void.

It would probably be more correct to intercept scwrite()'s to the mouse
device, but that's executed for every single write to the screen.
Supplying a start routine to eat the characters is only executed for the
mouse port during startup/shutdown, so it should be faster.
1996-09-10 19:14:49 +00:00
Bruce Evans
f313170d3c Updated #includes to 4.4Lite style. 1996-09-10 08:32:01 +00:00
Søren Schmidt
b1538b1658 The poor nsccons variable was gone agian this time hidden by
an ifdef , wonder who broke it this time :)

Submitted by:	 ache
1996-09-09 19:02:26 +00:00
Søren Schmidt
47382cd1e0 Make syscons replicate a mousesystems mouse on minor 128..
This enables other consumers of the mouse, to get it info via
moused/syscons.
In order to use it run moused (from sysconfig), and then tell
your Xserver that it should use /dev/sysmouse (mknod sysmouse c 12 128)
and it a mousesystems mouse. Everybody will be happy then :)
Remember that moused still needs to know what kind of mouse you
have..

Comments welcome, as is test results...
1996-09-08 21:31:56 +00:00
Bruce Evans
a7265255cc Fixed another easy case of const poisoning in the kernel. Cosmetic.
(A pointer to a const was misused to avoid loading loading the same
value twice, but gcc does exactly the same optimization automatically.
It can see that the value hasn't changed.)
1996-09-07 21:47:53 +00:00
Paul Traina
53809eab9c Add option SC_KBD_PROBE_WORKS to syscons driver.
If you define this, it means your keyboard is actually probable using the
brain-dammaged probe routine in syscons, and if the keyboard is NOT found,
then you don't want syscons to activate itself further.

This makes life sane for those of us who use serial consoles most of the
time and want "the right thing" to happen when we plug a keyboard in.
1996-09-06 23:35:54 +00:00
Poul-Henning Kamp
bfbb029d87 Remove devconf, it never grew up to be of any use. 1996-09-06 23:09:20 +00:00
Søren Schmidt
c771590aa7 Fixed a panic when switching to 40x25 mode, and cursor was beyond the
new buffer.
1996-09-04 22:24:19 +00:00
Søren Schmidt
3b1a310b4b Fixed a couple of bugs in the mousepointer code.
Changed update strategy slightly.
Make set_mode & copy_font externally visible.
1996-09-01 18:16:06 +00:00
Bruce Evans
3a4c46bd22 Fixed restoral of nsscons variable. The tty for /dev/console was lost.
A warning was introduced.
1996-08-28 18:20:22 +00:00
Peter Wemm
cb70011ceb restore nsccons variable from rev 1.115 that was deleted in rev 1.136
during phk's staticize/cleanup commits.  pstat needs it, the MAXCONS
option is not visible anywhere else, and pstat uses it to find the bounds
of the sccons[MAXCONS] array, which varies.
1996-08-16 10:16:32 +00:00
Bruce Evans
70e53371c4 Eliminated i586_ctr_rate. Use i586_ctr_freq instead. 1996-08-02 21:16:27 +00:00
Bruce Evans
33ded19fc2 Fixed the machdep.i8254_freq and machdep.i586_freq sysctls. Writes were
handled bogusly.

Centralized the setting of all the frequency variables.  Set these
variables atomically.  Some new ones aren't used yet.
1996-07-30 19:26:55 +00:00
Andrey A. Chernov
58db4b5a8f Fix GIO_ATTR ioctl return to match SYSV 1996-07-30 15:20:08 +00:00
Poul-Henning Kamp
cba8a5ddd3 Make a "DWIM" function for adding [bc]devsw entries for bdev drivers.
Saves about 280 butes of source per driver, 56 bytes in object size
and another 56 bytes moves from data to bss.

No functional change intended nor expected.

GENERIC should be about one k smaller now :-)
1996-07-23 21:52:43 +00:00
Joerg Wunsch
3135240845 Post-commit review by Bruce. Mostly stylistic changes.
Submitted by:	bde
1996-07-21 08:20:51 +00:00
Joerg Wunsch
99211adf2c Major cleanup of the timerX_{acquire,release} stuff. In particular,
make it more intelligible, improve the partially bogus locking, and
allow for a ``quick re-acquiration'' from a pending release of timer 0
that happened ``recently'', so it was not processed yet by clkintr().
This latter modification now finally allows to play XBoing over
pcaudio without losing sounds or getting complaints. ;-)  (XBoing
opens/writes/closes the sound device all over the day.)

Correct locking for sysbeep().

Extensively (:-) reviewed by:	bde
1996-07-20 18:47:23 +00:00
Julian Elischer
75d050aeaa some internal modems need LOTS of time to generate an interrupt
on demand.. increase DELAY from 1000 uS to 10000uS
1996-07-17 22:07:23 +00:00
Bruce Evans
65d98215ea Fixed adjustment of `time' when timer0 is released. 27465 was 27645 in
a comment and in code that was only used when pcaudio was closed.  The
maximum error was 66 usec.
1996-07-17 11:26:05 +00:00
Bruce Evans
cba2a7c614 Staticized a few variables.
Fixed warnings about unused variables.
1996-07-12 07:41:34 +00:00
Bruce Evans
f6b4ae3c82 Added or restored #include of <machine/md_var.h>. Some declarations
moved from <machine/cpufunc.h> to better places.
1996-07-01 20:29:10 +00:00
Bruce Evans
d2700ee639 Use the standard timer (interrupt) frequency while calibrating the clocks.
Testing with the high frequency of 20000 Hz (to find problems) only found
the problem that this frequency is too high for slow i386's.

Disable interrupts while setting the timer frequency.  This was unnecessary
before rev.1.57 and forgotten in rev.1.57.  The critical (i8254) interrupts
are disabled in another way at boot time but not in the sysctl to change
the frequency.
1996-07-01 18:00:47 +00:00
Joerg Wunsch
a9e9062ca1 Bump various timeouts in scprobe(). This finally fixes the broken
keyboard reset one of my earlier commits has been causing.
1996-06-27 21:36:11 +00:00
Søren Schmidt
da040b2280 Fixed bug in pasting 8bit char (ache).
Added linefeeds in cuts that extend beyond one line.
Prepared for the mousefunctions to be used in nontext modes.
1996-06-26 13:04:53 +00:00
Bruce Evans
c673fe98d7 Added #include of <machine/md_var.h>. This will be needed when
some declarations are moved from <machine/cpufunc.h> to better
places.
1996-06-25 20:31:01 +00:00
Søren Schmidt
ad0c0c784f Change the way moused talk to syscons, now its only delivering mouseevents
via an ioctl (MOUSE_ACTION).
Fixed a couple of bugs (destructive cursor, uncut, jitter).
Now applications can use the mouse via the MOUSE_MODE ioctl, its
possible to have a signal sent on mouseevents, makeing an event loop
in the application take over mouseevents.
1996-06-25 08:54:57 +00:00
Bruce Evans
ea959743cb Moved declarations of static functions to the correct file. This fixes
hundreds of warnings from -Wunused in lkm/syscons/*.
1996-06-23 17:12:05 +00:00
Søren Schmidt
ab35f219ac Oops, fix a bug that caused updates to the screen to happen, without
anything actually changed, in this case the mousepointer logic.
1996-06-21 11:31:09 +00:00
Søren Schmidt
de4d1b835e Some news for syscons (long overdue):
Real support for a Textmode mousecursor, works by reprogramming the
charset. Together with this support for cut&paste in text mode.
To use it a userland daemon is needed (moused), which provides
the interface to the various mice protokols.
Bug fixes here and there, all known PR's closed by this update.
1996-06-21 07:19:18 +00:00
Bill Paul
afe0e92aa8 Stomp another compiler warning: sc_devfs_token[] should only be declared
if DEVFS is #defined.
1996-06-17 17:21:35 +00:00
Bruce Evans
7d64a7fe80 Added support for TIOCDCDTIMESTAMP (enable/get timestamp of last DCD rise).
Original version by John Hay.

Simplified timestamp code by reading the time exactly when necessary.
This may slow down the interrupt handler with extra calls to microtime(),
but only in bad configurations - the input fifo should normally be
disabled if timestamps on input are being used, since otherwise the
timestamp won't be precisely associated with any particular input event.
The interrupt handler remains slowed down by one test and branch for
each input (and now DCD change) event - avoiding this is not practical
yet.

The simplifications also fixed:
- timestamps for input sometimes being clobbered by output and modem
  status interrupts.
- valid timestamps not being available unless the port is configured with
  vector siointrts.  siointrts no longer exists.
- compiler warnings about siointr* in some configurations.

Simplified timestamp and probe code by depending on recent changes in
microtime() and DELAY() to preserve the interrupt enable flag.
1996-06-17 14:23:39 +00:00
Bruce Evans
16263f7a8b In getit(), use read_eflags()/write_eflags() to preserve the interrupt
enable flag instead of enable_intr() to restore it to its usual state.
getit() is only called from DELAY() so there is no point in optimising
its speed (this wasn't so clear when it was extern), and using
enable_intr() made it inconvenient to call DELAY() from probes that need
to run with interrupts disabled.
1996-06-17 12:50:22 +00:00
Paul Traina
8f33d986bc Move warning messages under bootverbose 1996-06-11 16:11:27 +00:00
Paul Traina
6d715e951e Put clock calibration #defines in opt_clock.h to ease reconfiguration 1996-06-11 16:02:55 +00:00
Peter Wemm
d2dc185840 Fix the warnings about "cant inline call to xxx" by reordering two
functions.  It seems gcc wants to have seen the definitions of the
function before it will insert it inline in a caller.
1996-05-27 06:02:52 +00:00
Joerg Wunsch
09fdca5394 Fix the "well-known retries bug" (a logic-o). 1996-05-12 12:36:59 +00:00
Joerg Wunsch
a9313682fc Give up waiting for a successful keyboard reset after some
unreasonable time.  I've got a PCI mainboard that simply doesn't grok
it, so continuing with a warning (and a keyboard that's working
nevertheless :) seems to be better than spin-looping forever.
1996-05-11 23:16:23 +00:00
Poul-Henning Kamp
14212c9d29 Typo. 1996-05-03 20:15:11 +00:00
Poul-Henning Kamp
17542807e5 Move from the old buf.b_actf to the new TAILQ(buf.b_act). 1996-05-03 14:57:27 +00:00
Andrey A. Chernov
f0478277ba Fix ^[[1K (clear from beginning of line to cursor) and
^[[2K (clear whole line), they not work _initially_
1996-05-02 21:47:50 +00:00
Poul-Henning Kamp
a8c5fef5e6 KGDB is dead. It may come back one day if somebody does it. 1996-05-02 09:34:51 +00:00
Bruce Evans
2dafbfcbab Added calibration the i8254 and the i586 clocks agains the RTC at boot
time.  The results are currently ignored unless certain temporary options
are used.

Added sysctls to support reading and writing the clock frequency variables
(not the frequencies themselves).  Writing is supposed to atomically
adjust all related variables.

machdep.c:
Fixed spelling of a function name in a comment so that I can log this
message which should have been with the previous commit.

Initialize `cpu_class' earlier so that it can be used in startrtclock()
instead of in calibrate_cyclecounter() (which no longer exists).

Removed range checking of `cpu'.  It is always initialized to CPU_XXX
so it is less likely to be out of bounds than most variables.

clock.h:
Removed I586_CYCLECTR().  Use rdtsc() instead.

clock.c:
TIMER_FREQ is now a variable timer_freq that defaults to the old value of
TIMER_FREQ.  #define'ing TIMER_FREQ should still work and may be the best
way of setting the frequency.

Calibration involves counting cycles while watching the RTC for one second.
This gives values correct to within (a few ppm) + (the innaccuracy of the
RTC) on my systems.
1996-05-01 08:39:02 +00:00
Bruce Evans
b1d3d2ffcf Fixed a race that caused panics in kernel printfs when the screen timeout
routine changed the screen pointers while output was in progress.
1996-05-01 03:58:21 +00:00
Søren Schmidt
03475c250b Removed options MAXCONS & HARDFONT, they are no longer in use
(and havn't been for long, sigh)
1996-04-26 06:45:41 +00:00
Nate Williams
e12ac36c96 Format the already applied PCCARD additions to use KNF form. No
functional changes.
1996-04-23 18:36:56 +00:00
Nate Williams
e597b4972e - add apm to the GENERIC kernel (disabled by default), and add some comments
regarding apm to LINT
- Disabled the statistics clock on machines which have an APM BIOS and
  have the options "APM_BROKEN_STATCLOCK" enabled (which is default
  in GENERIC now)
- move around some of the code in clock.c dealing with the rtc to make
  it more obvios the effects of disabling the statistics clock

Reviewed by:	bde
1996-04-22 19:40:28 +00:00
Bruce Evans
aef18d6ed7 Another try: fixed bogus change of the fifo settings for the non-speed of 0.
rev.1.30 incorrectly changed the behaviour from always disabling the fifo
to always enabling it.
1996-04-13 14:55:18 +00:00
Bruce Evans
3745f80a48 Moved AUTO_EOI_[12] and most sio and pcvt options out of the makefile. 1996-04-11 21:18:49 +00:00
Marc G. Fournier
6d4bca5b8a removed RS_IBUFSIZE #ifndef - have been informed it was a bad idea 1996-04-10 18:09:58 +00:00
Marc G. Fournier
f4f119017f Placed an #ifndef around RS_IBUFSIZE so that it can be changed in the
config file ... PR#528 is reportly fixed by adding 'options RS_IBUFSIZE=1024'
to the config file
1996-04-10 04:18:36 +00:00
Sujal Patel
100f78bbe0 Update drivers to use isa_dma_acquire() and isa_dma_release()
Reviewed by:	bde
1996-04-08 19:40:57 +00:00
Bruce Evans
3157adc8af Removed now-unused #includes of <machine/cpu.h>. They were for bootverbose
being declared in the wrong place.
1996-04-07 17:32:42 +00:00
Bruce Evans
2151975455 Fixed devfs device names and numbers.
Fixed handling of unknown CMOS types - don't attach unrecognized devices.
1996-04-07 14:46:42 +00:00
Andrey A. Chernov
2cb9219c5d Fix adjkerntz expression priority 1996-04-05 18:56:10 +00:00
Andrey A. Chernov
fe0d5f43c5 Add wall_cmos_clock sysctl variable, needed to manage adjkerntz even for
UTC cmos clocks (needed for Local Timezone FSes)
1996-04-05 03:36:31 +00:00
Marc G. Fournier
ecd87fe6c3 changed from using dev_link() to devfs_link() 1996-04-02 04:52:03 +00:00
Joerg Wunsch
0e317d05cc Fetch the (dummy) READY CHANGED condition interrupt stati that
happen after an FDC reset.

Submitted by:	bde
1996-03-31 18:04:51 +00:00
Bruce Evans
ef9805a3c8 Moved rtcin() to clock.c.
Always delay using one inb(0x84) after each i/o in rtcin() - don't
do this conditional on the bogus option DUMMY_NOPS not being defined.
If you want an optionally slightly faster rtcin() again, then inline
it and use a better named option or sysctl variable.  It only needs
to be fast in rtcintr().
1996-03-31 04:05:36 +00:00
Bruce Evans
f85120ac5b Fixed group of some more disk devices.
Fixed devfs function names.
1996-03-29 11:45:12 +00:00
Marc G. Fournier
6e18ce4676 Switched from using devfs_add_sw() to using devfs_add_swf()
Reviewed by:	julian@freebsd.org
1996-03-28 14:29:52 +00:00
Bruce Evans
6c4591a089 Fixed ownerships of callout devices. 1996-03-27 20:03:32 +00:00
Bruce Evans
df957ee1b3 Moved the initialization of the devfs devices to after the initialization
of the devswitch so that it actually works.
1996-03-27 19:11:41 +00:00
Nate Williams
cdf642d171 Whoops, back out the last commit, which was accidentally committed at
the same time as the if_zp cleanup patch.

The commit that occurred was an incomplete patch for APM on my laptop
and needs more work.
1996-03-23 21:36:03 +00:00
Nate Williams
ada00a4447 Now that ac->ac_ipaddr and arpwhohas() no longer exist, remove the
ifdef'd out code that used it.
1996-03-23 21:32:39 +00:00
Jean-Marc Zucconi
80da27b88c Fix the isa_device table (lkm): id_irq and id_maddr must be 0.
Pointed out by: bde
1996-03-16 01:08:04 +00:00
Jean-Marc Zucconi
b1fe5b5c60 Add code to make it a loadable kernel module 1996-03-15 20:35:06 +00:00
Peter Wemm
4bd4912865 Add more options into the conf/options and i386/conf/options.i386 files
and the #include hooks so that 'make depend' is more useful.  This
covers most of the options I regularly use (but not all) and some other
easy ones.
1996-03-02 18:24:13 +00:00
Bruce Evans
3b3bedbc0e Added some delays to the probe. This might fix some incompatible UARTs
(the ones that take more than a few hundred nsec and less than 1 msec to
switch their IRQ output).
1996-02-25 21:10:54 +00:00
Bruce Evans
8335c1b8ae Don't turn off the motor on active drives. The motor timeout may
occur while a command is in progress if the system is overloaded
or was stopped at a debugger breakpoint.
1996-02-25 21:01:31 +00:00
Poul-Henning Kamp
01a3e1a590 use devfs_add_devswf and avoid local variable. 1996-02-13 14:15:13 +00:00
Paul Traina
ab58050112 Close kern/627 - panic if syscons not attached 1996-02-08 06:30:31 +00:00
Andrey A. Chernov
f2b4163c2a Deliver all bells to current console, use different pitch
for non-originating bells.
1996-02-05 14:08:39 +00:00
Mike Pritchard
6c5e9bbdf5 Fix a bunch of spelling errors in the comment fields of
a bunch of system include files.
1996-01-30 23:02:38 +00:00
Garrett Wollman
3addba4f55 No longer use the cyclecounter to attempt to correct for late or missed
clock interrupts.

Keep a 1-in-16 smoothed average of the length of each tick.  If the
CPU speed is correctly diagnosed, this should give experienced users
enough information to figure out a more suitable value for `tick'.
1996-01-30 18:56:47 +00:00
Bruce Evans
c8f2fe8db8 First attempt at creating devfs entries for sliced devices. Doesn't
quite work yet, so the heart of it is disabled.

Added bdev and cdev args to dsopen().

drivers:
Fixed device names, links, minor numbers and modes.

wd.c:
Started actually supporting devfs.

diskslice.h:
Added devfs tokens to structs (currently 576 of them per disk! :-().

subr_diskslice.c:
Create devfs entries in dsopen() and (unsuccessfully) attempt to make
them go away at the right times.  DEVFS is #undefed at the start so
that this shouldn't cause problems.
1996-01-27 04:18:15 +00:00
Bruce Evans
dd87702a51 Allocate DMA bounce buffers only when requested by drivers. Only the
fd and wt drivers need bounce buffers, so this normally saves 32K-1K
of kernel memory.

Keep track of which DMA channels are busy.  isa_dmadone() must now be
called when DMA has finished or been aborted.

Panic for unallocated and too-small (required) bounce buffers.

fd.c:
There will be new warnings about isa_dmadone() not being called after
DMA has been aborted.

sound/dmabuf.c:
isa_dmadone() needs more parameters than are available, so temporarily
use a new interface isa_dmadone_nobounce() to avoid having to worry
about panics for fake parameters.  Untested.
1996-01-27 02:33:48 +00:00
Andrey A. Chernov
887c00b859 Change RUKEYMAP sligtly 1996-01-25 16:37:20 +00:00
Poul-Henning Kamp
e8cbe8fa47 Avoid local sprintfs and other printf'isms. 1996-01-25 07:21:50 +00:00
Andrey A. Chernov
d85314fa5f Since new bcd* macros not argument range overflow resistant,
fix argument overflow for years >= 2000
1996-01-16 06:35:40 +00:00
Poul-Henning Kamp
3eb50b2edd My wife is busy making me a new conical hat, so you don't need to
send any to me this time.  Commited an old copy of this files where
the tables were swapped.  Duh!.
1996-01-15 21:26:43 +00:00
Poul-Henning Kamp
e95fbcfeb4 Soren called an said that I screwed up badly, so I backup until
I find out how... Sorry.
1996-01-15 21:12:50 +00:00
Poul-Henning Kamp
2898c294f4 Make bin2bcd and bcd2bin global macroes instead of having local
implementations all over the place.
1996-01-15 10:28:44 +00:00
Bruce Evans
f668341de4 Fixed handling of Feb 29 in resettodr(). 1996-01-12 17:33:12 +00:00
Andrey A. Chernov
dc3f9062ca Replace ugly year/month calculations in resettodr to more clean
variants, idea taken from NetBSD clock.c.
At least year calculation was wrong, pointed by Bruce.
Use different strategy to store year for BIOS without RTC_CENTURY
1996-01-08 18:50:14 +00:00
Garrett Wollman
0e41ee3037 Convert DDB to new-style option. 1996-01-04 21:13:23 +00:00
Bruce Evans
5c0ea38c00 Restored likely_com_ports[] from rev.1.122 so that Hayes ESP support at
least compiles.
1995-12-30 03:52:58 +00:00
Bruce Evans
2c28d76196 Oops, this should have been committed with the other Hayes ESP changes. 1995-12-29 13:18:58 +00:00
Bruce Evans
768fd661e4 Added support for the Hayes ESP serial card.
Submitted by:	Sean Eric Fagan (sef@kithrup.com)
Based on code by John Vinopal (banshee@resort.com)
Cosmetic (I hope) changes by me (bde).
1995-12-29 12:51:32 +00:00
David Greenman
6410f76727 Add Pentium Pro CPU detection and special handling. For now, all the
optimizations we have for 586s also apply to 686s...this will be fine-
tuned in the future as appropriate.
1995-12-24 08:10:52 +00:00
Bruce Evans
bfd6eab381 Fixed bugs introduced in rev. 1.127 (some broken 16650 support was
unintentionally committed):
- the fifo was completely disabled for low speeds.  Apart from being
  unnecessarily inefficient, this invalidated com->tx_fifo_size.
- `ftl' became a bogus name.
- the 16650 probe breaks the COM_NOFIFO() case and has other bugs
  (disabled, not fixed).

Fixed bogus change of the fifo settings for the non-speed of 0.  This
bug made the above fifo bug occur even at non-low speeds.

Fixed the modes of the cua devices.  It isn't possible to set the uid
and gid correctly since the kernel can't know who uucp.dialer is.

Register the devswitch at device attach time.  SYSINIT() is not
the right way to initialize devswitches (if anything :->).
Eventually, the devswitch should be deregistered at device detach
and/or unload time and reregistered at device attach time ...  Then
some com->gone tests could be removed.

Cleaned up some other recent changes.
1995-12-22 14:58:55 +00:00
Garrett Wollman
a8178e4bb6 Increase Pentium cyclecounter calibration time to 131072 us. This
experimentally seems to give better results on my machine.
1995-12-20 20:57:33 +00:00
Bruce Evans
0dfe10a65c Completed function declarations and/or added prototypes and/or added
#includes to get prototypes.
1995-12-15 00:54:32 +00:00
Bruce Evans
d14122ea44 Fixed staticization of DDB functions. 1995-12-14 23:01:51 +00:00
Bruce Evans
d1022821ae Removed my devsw access functions [un]register_cdev() and
getmajorbyname() which were a better (sigh) temporary interface to
the going-away devswitches.

Note that SYSINIT()s to initialize the devswitches would be fatal
in syscons.c and pcvt_drv.c (and are bogus elsewhere) because they
get called independently of whether the device is attached; thus
devices that share a major clobber each other's devswitch entries
until the last one wins.

conf.c:
Removed stale #includes and comments.
1995-12-14 22:03:12 +00:00
Bruce Evans
81ab2caf0a Replaced nxreset by noreset (if the reset function gets called, then the
device must be configured.  It's hard to tell whether a reset function
should be noreset or nullreset since reset functions are never called.
Most drivers use nullreset but noreset has the advantage of complaining
if somehow gets called).
1995-12-10 20:54:38 +00:00
Bruce Evans
f332b8a1d5 Replaced nxdump by nodump (if the dump function gets called, then the
device must be configured, so ENXIO is a bogus errno).

Replaced zerosize by nopsize.  zerosize was a temporary alias.
1995-12-10 19:44:58 +00:00
Bruce Evans
c73feca0b7 Removed new alias d_size_t for d_psize_t.
Removed old aliases d_rdwr_t and d_ttycv_t for d_read_t/d_write_t and
d_devtotty_t.

Sorted declarations of switch functions into switch order.

Removed duplicated comments and declarations of nonexistent switch
functions.
1995-12-10 15:55:34 +00:00
Poul-Henning Kamp
6f4e0beb7e Staticize and cleanup. 1995-12-10 13:40:44 +00:00
Julian Elischer
4d92e19833 clean a few DEVFS things..
fix a bug where you couldn't place devices in the root directory
of devfs

remove deprecated routines

On my machine devfs now shows:
julian@erf.tfs.com:
julian@erf.tfs.com: ls -RF
bpf0            mem             ptypb           spkr            ttyp8
bpf1            null            ptypc           stderr          ttyp9
bpf2            pcaudio         ptypd           stdin           ttypa
bpf3            pcaudioctl      ptype           stdout          ttypb
console         pt              ptypf           tty             ttypc
cuaa0           ptyp0           random          ttyd0           ttypd
cuaia0          ptyp1           rsd0            ttyid0          ttype
cuala0          ptyp2           rsd1            ttyld0          ttypf
fd/             ptyp3           rvn             ttyp0           tun0
fd0.1440        ptyp4           rworm           ttyp1           urandom
fd1.1200        ptyp5           scsi/           ttyp2           vn
io              ptyp6           sd0             ttyp3           zero
kmem            ptyp7           sd1             ttyp4
lkm             ptyp8           snp0            ttyp5
log             ptyp9           snp1            ttyp6
lpt0            ptypa           snp2            ttyp7

./fd:
0       15      21      28      34      40      47      53      6       9
1       16      22      29      35      41      48      54      60
10      17      23      3       36      42      49      55      61
11      18      24      30      37      43      5       56      62
12      19      25      31      38      44      50      57      63
13      2       26      32      39      45      51      58      7
14      20      27      33      4       46      52      59      8

./scsi:
sctarg  ssc
julian@erf.tfs.com:

which is all devices really there except for disk slices/partitions..
(if I don't have it it's not there, which has GOT to be an improvement..)

no DEVFS fixes from device maintainers yet?
1995-12-09 09:11:25 +00:00
Poul-Henning Kamp
d2f265fab8 Julian forgot to make the *devsw structures static. 1995-12-08 23:23:00 +00:00
Julian Elischer
87f6c6625d Pass 3 of the great devsw changes
most devsw referenced functions are now static, as they are
in the same file as their devsw structure. I've also added DEVFS
support for nearly every device in the system, however
many of the devices have 'incorrect' names under DEVFS
because I couldn't quickly work out the correct naming conventions.
(but devfs won't be coming on line for a month or so anyhow so that doesn't
matter)

If you "OWN" a device which would normally have an entry in /dev
then search for the devfs_add_devsw() entries and munge to make them right..
check out similar devices to see what I might have done in them in you
can't see what's going on..
for a laugh compare conf.c conf.h defore and after... :)
I have not doen DEVFS entries for any DISKSLICE devices yet as that will be
a much more complicated job.. (pass 5 :)

pass 4 will be to make the devsw tables of type (cdevsw * )
rather than (cdevsw)
seems to work here..
complaints to the usual places.. :)
1995-12-08 11:19:42 +00:00
David Greenman
efeaf95a41 Untangled the vm.h include file spaghetti. 1995-12-07 12:48:31 +00:00
Bruce Evans
0310c19f5d Replaced #includes of <sys/user.h> by less gross headers, usually
<sys/vm.h>.  Many device drivers need only the definition of vtophys()
from vm.

Added nearby #includes of <sys/conf.h> where appropriate.
1995-12-06 23:52:35 +00:00
Bruce Evans
86a1c05db0 Removed unnecessary #includes of <sys/user.h>. Some of these were just
to get the definitions of TRUE and FALSE which happen to be defined in
a deeply nested include.

Added nearby #includes of <sys/conf.h> where appropriate.
1995-12-06 23:44:23 +00:00
Andrey A. Chernov
662f3a95dd Fix my color/attr separation patch.
Swap foreground/background logic to allow DIM REVERSE
1995-11-30 03:29:31 +00:00
Garrett Wollman
9350db19e7 Fix Pentium CPU rate diagnosis:
- Don't print out meaningless iCOMP numbers, those are for droids.
	- Use a shorter wait to determine clock rate to avoid deficiencies
	  in DELAY().
	- Use a fixed-point representation with 8 bits of fraction to store
	  the rate and rationalize the variable name.  It would be
	  possible to use even more fraction if it turns out to be
	  worthwhile (I rather doubt it).

The question of source code arrangement remains unaddressed.
1995-11-29 19:57:22 +00:00
Bruce Evans
56cb20cd72 Removed builtin list of port addresses. The address for sio3
conflicted with S3 graphics cards.  Now users should put sio[2-3]
in the config file if the hardware exisst, even if the probe is
certain to fail due to an interrupt conflict.  Otherwise, ports
sharing the interrupt may fail the probe if the system is warm
booted while sio[2-3] are active (perhaps under another OS).  The
same problem for nonstandard ports is now handled better than
before.
1995-11-29 15:00:07 +00:00
Julian Elischer
7198bf4725 If you're going to mechanically replicate something in 50 files
it's best to not have a (compiles cleanly) typo in it! (sigh)
1995-11-29 14:41:20 +00:00
Julian Elischer
53ac6efbd8 OK, that's it..
That's EVERY SINGLE driver that has an entry in conf.c..
my next trick will be to define cdevsw[] and bdevsw[]
as empty arrays and remove all those DAMNED defines as well..

Each of these drivers has a SYSINIT linker set entry
that comes in very early.. and asks teh driver to add it's own
entry to the two devsw[] tables.

some slight reworking of the commits from yesterday (added the SYSINIT
stuff and some usually wrong but token DEVFS entries to all these
devices.

BTW does anyone know where the 'ata' entries in conf.c actually reside?
seems we don't actually have a 'ataopen() etc...

If you want to add a new device in conf.c
please  make sure I know
so I can keep it up to date too..

as before, this is all dependent on #if defined(JREMOD)
(and #ifdef DEVFS in parts)
1995-11-29 10:49:16 +00:00
Julian Elischer
7146c13e43 the second set of changes in a move towards getting devices to be
totally dynamic.

this is only the devices in i386/isa
I'll do more tomorrow.
they're completely masked by #ifdef JREMOD at this stage...
the eventual aim is that every driver will do a SYSINIT
at startup BEFORE the probes, which will effectively
link it into the devsw tables etc.

If I'd thought about it more I'd have put that in in this set (damn)
The ioconf lines generated by config will also end up in the
device's own scope as well, so ioconf.c will eventually be gutted
the SYSINIT call to the driver will include a phase where the
driver links it's ioconf line into a chain of such. when this phase is done
then the user can modify them with the boot: -c
config menu if he wants, just like now..
config will put the config lines out in the .h file
(e.g. in aha.h will be the addresses for the aha driver to look.)
as I said this is a very small first step..
the aim of THIS set of edits is to not have to edit conf.c at all when
adding a new device.. the tabe will be a simple skeleton..

when this is done, it will allow other changes to be made,
all teh time still having a fully working kernel tree,
but the logical outcome is the complete REMOVAL of the devsw tables.

By the end of this, linked in drivers will be exactly the same as
run-time loaded drivers, except they JUST HAPPEN to already be linked
and present at startup..
the SYSINIT calls will be the equivalent of the "init" call
made to a newly loaded driver in every respect.

For this edit,
each of the files has the following code inserted into it:

obviously, tailored to suit..
----------------------somewhere at the top:
#ifdef JREMOD
#include <sys/conf.h>
#define CDEV_MAJOR 13
#define BDEV_MAJOR 4
static void 	sd_devsw_install();
#endif /*JREMOD */
---------------------somewhere that's run during bootup: EVENTUALLY a SYSINIT
#ifdef JREMOD
        sd_devsw_install();
#endif /*JREMOD*/
-----------------------at the bottom:
#ifdef JREMOD
struct bdevsw sd_bdevsw =
	{ sdopen,	sdclose,	sdstrategy,	sdioctl,	/*4*/
	  sddump,	sdsize,		0 };

struct cdevsw sd_cdevsw =
	{ sdopen,	sdclose,	rawread,	rawwrite,	/*13*/
	  sdioctl,	nostop,		nullreset,	nodevtotty,/* sd */
	  seltrue,	nommap,		sdstrategy };

static sd_devsw_installed = 0;

static void 	sd_devsw_install()
{
	dev_t descript;
	if( ! sd_devsw_installed ) {
		descript = makedev(CDEV_MAJOR,0);
		cdevsw_add(&descript,&sd_cdevsw,NULL);
#if defined(BDEV_MAJOR)
		descript = makedev(BDEV_MAJOR,0);
		bdevsw_add(&descript,&sd_bdevsw,NULL);
#endif /*BDEV_MAJOR*/
		sd_devsw_installed = 1;
	}
}
#endif /* JREMOD */
1995-11-28 09:42:06 +00:00
Andrey A. Chernov
00265e7d4d Separate colors & attributes as Terry points
Reviewed by: soren
1995-11-28 00:17:32 +00:00
Bruce Evans
d818a9cc1f Fixed a comment. 1995-11-24 14:56:00 +00:00
Bruce Evans
6ad175be4d Restored static variable `nsio_tty' which is used only by pstat(8). Made
it `const' to inhibit compiler warnings.

Added #include of <pccard/driver.h> to get prototypes.  <pccard/slot.h>
is still necessary for its side effect of exporting non-slot things.
1995-11-21 09:15:04 +00:00
Poul-Henning Kamp
4b2af45f4b Mega commit for sysctl.
Convert the remaining sysctl stuff to the new way of doing things.
the devconf stuff is the reason for the large number of files.
Cleaned up some compiler warnings while I were there.
1995-11-20 12:42:39 +00:00
Poul-Henning Kamp
bf6a29da66 Fix compiler warnings. 1995-11-20 12:13:32 +00:00
Bruce Evans
27513ca73b Fixed (nonexistent) initialization of bp->b_pblkno. disksort() for
floppies must have been random in 2.x since we reintroduced sorting
on b_pblkno on 1995/03/18.  Drivers still initialize b_cylin/b_resid
although this is no longer used.

Removed unused, wrong function fdsize().  (Returning 0 means that the
device exists and has size 0, not that the device doesn't exist.
swaponvp() allows for size 0 by stupidly calling the d_psize function
twice if the size isn't 0.  setdumpdev() doesn't allow for it.)

Continued removing /* ARGSUSED */ from drivers.
1995-11-18 07:48:11 +00:00
Bruce Evans
4ff3de8e80 Added `#include "ioconf.h"' to <machine/conf.h> and cleaned up the
misplaced extern declarations (mostly prototypes of interrupt handlers)
that this exposed.  The prototypes should be moved back to the driver
sources when the functions are staticalized.

Added idempotency guards to <machine/conf.h>.  "ioconf.h" can't be
included when building LKMs so define a wart in bsd.kmod.mk to help
guard against including it.
1995-11-04 17:08:13 +00:00
Mark Murray
96441a8c38 Remove the #ifdev DEVRANDOM's, as promised.
/dev/random is now a part of the kernel! you will need to make
the device in /dev: sh MAKEDEV random
and take a look at some test code in src/tools/test/random.
1995-11-04 16:00:56 +00:00
Bruce Evans
4fda91c705 Moved prototypes for devswitch functions from conf.c and driver sources
to <machine/conf.h>.  conf.h was mechanically generated by
`grep ^d_ conf.c >conf.h'.  This accounts for part of its ugliness.  The
prototypes should be moved back to the driver sources when the functions
are staticalized.
1995-11-04 13:25:33 +00:00
Mark Murray
1bb2d3142b Theodore Ts'po's random number gernerator for Linux, ported by me.
This code will only be included in your kernel if you have
'options DEVRANDOM', but that will fall away in a couple of days.
Obtained from: Theodore Ts'o, Linux
1995-10-28 16:58:05 +00:00
Poul-Henning Kamp
4ccc87c594 Remove unused functions and variables, make things static, and other cleanups. 1995-10-28 15:39:31 +00:00
Bruce Evans
f668386c04 sio.c:
Fix the tests for being a console by reverting to the ones that
were used before the the RB_SERIAL changes.  RB_SERIAL only needs
to be tested in one place.  The initialization of comconsole was
wrong before the RB_SERIAL changes for the COMCONSOLE case.  This
may have been the cause of the unnecessary changes.

Start eliminating #includes of <i386/i386/cons.h>.  This header is
supposed to be included from <machine> although it should be
completely machine-independent and included from <sys>.

Remove a wrong XXX comment.  `comconsole' is used to test for being
a console and even the tests for deciding the default termios state
are necessary (the semi-reentrant i/o routines don't handle ordinary
device i/o).

cy.c:
Sync with sio.c.  The console tests are present but always fail.
1995-10-22 15:38:08 +00:00
Poul-Henning Kamp
b59d7f4673 A mixed bag of changes, relating to getting the state in "lsdev" right,
and pccard support to work sensibly.  Better by far, but still not good.
1995-10-21 00:55:36 +00:00
Bruce Evans
21e00296ec Don't allow i/o operations for non-root users.
Add prototypes.
1995-10-14 07:08:09 +00:00
Garrett Wollman
e2d4b1f051 Reduce jitter of Pentium microtime() implementation by letting the counter
free-run and doing a subtract in microtime() rather than resetting the
counter to zero at every clock tick.  In combination with the changes to
kern_clock.c, this should eliminate all the immediately obvious sources
of systematic jitter in timekeeping on Pentium machines.
1995-10-12 20:39:49 +00:00
Joerg Wunsch
86a727d96d BIOS manufacturers don't seem to have a unique idea about 2.88 MB
floppy drive types in the CMOS; add 0x50 as an alias for 2.88 MB.
1995-10-09 15:00:39 +00:00
Joerg Wunsch
16b04b6ae7 Hide the "input/output timeout" messages behind the bootverbose case.
This message has been confusing innocent ft users.

It should go into 2.1 as well, it's a very simple fix.
1995-10-04 07:01:23 +00:00
David Greenman
b025187719 siostop() is a void function, so don't return a value. 1995-09-24 04:59:16 +00:00
Poul-Henning Kamp
ccdbc84cba The stuff needed to remove a pccard with a sio port on it...
Not optimal, but pretty solid.
1995-09-19 12:37:41 +00:00
Bruce Evans
191e1a59da Remove transitory labelling code. Labels are now handled by essentially
the original 4.4lite code.  Machine Specific Partitions are now handled
separately.
1995-09-16 17:04:06 +00:00
Bruce Evans
e7451974bb Make pcvt and syscons live in the same kernel. If both are enabled, then
the first one in the config has priority.  They can be switched using
userconfig().

i386/i386/conf.c:
Initialize the shared syscons/pcvt cdevsw entry to `nx'.

Add cdevsw registration functions.

Use devsw functions of the correct type if they exist.

i386/i386/cons.c:
Add renamed syscons entry points to constab.

i386/i386/cons.h:
Declare the renamed syscons entry points.

i386/i386/machdep.c:
Repeat console initialization after userconfig() in case the current
console has become wrong.  This depends on cn functions not wiring down
anything important.

sys/conf.h:
Declare new functions.

i386/isa/isa.[ch]:
Add a function to decide which display driver has priority.  Should be
done better.

i386/isa/syscons.c:
Rename pccn* -> sccn*.

Initialize CRTC start address in case the previous driver has moved it.

i386/isa/syscons.c, i386/isa/pcvt/*
Initialize the bogusly shared variable Crtat dynamically in case the
stored value was changed by the previous driver.

Initialize cdevsw table from a template.

Don't grab the console if another display driver has priority.

i386/isa/syscons.h, i386/isa/pcvt/pcvt_hdr.h:
Don't externally declare now-static cdevsw functions.

i386/isa/pcvt/pcvt_hdr.h:
Set the sensitive hardware flag so that pcvt doesn't always have lower
priority than syscons.  This also fixes the "stupid" detection of the
display after filling the display with text.

i386/isa/pcvt/pcvt_out.c:
Don't be confused the off-screen cursor offset 0xffff set by syscons.

kern/subr_xxx.c:
Add enough nxio/nodev/null devsw functions of the correct type for syscons
and pcvt.
1995-09-10 21:36:12 +00:00
Bruce Evans
11d2504079 Actually, 97 out of 304 devsw functions had benignly mismatched types. 1995-09-08 19:57:13 +00:00
Julian Elischer
8af5d536ff devfs changes..
changes to allow devices that don't probe (e.g. /dev/mem)
to create devfs entries
this required giving 'configure' its own SYSINIT entry
so we could duck in just before it with a DEVFS init
and some device inits..
my devfs now looks like:
./misc
./misc/speaker
./misc/mem
./misc/kmem
./misc/null
./misc/zero
./misc/io
./misc/console
./misc/pcaudio
./misc/pcaudioctl
./disks
./disks/rfloppy
./disks/rfloppy/fd0.1440
./disks/rfloppy/fd1.1200
./disks/floppy
./disks/floppy/fd0.1440
./disks/floppy/fd1.1200
also some sligt cleanups.. DEVFS needs a lot of work
but I'm getting back to it..
1995-09-03 05:43:50 +00:00
Bruce Evans
b2c4393679 Remove extra args from the calls to getit(). The bug was benign with the
default function call convention.
1995-08-25 19:24:56 +00:00
Poul-Henning Kamp
0d2966d3f2 Andrew McRae's pcmcia/pccard code, the kernel part.
This is still very green, but I have managed to get my modem working.
Lots of work still to do, but now at least we can commit it. /phk

Reviewed by:	phk
Submitted by:	Andrew McRae <andrew@mega.com.au>
1995-08-24 08:56:20 +00:00
Nate Williams
a42b8f1321 Added missing semi-colon in the XT_KEYBOARD code. W/out it the code
would not compile.
1995-08-16 22:36:43 +00:00
Bruce Evans
6097a1e94f Disable fifos in sioclose(). Closes PR 576. 1995-08-13 07:49:35 +00:00
John Dyson
302cf5869a Fixed a problem that malloc(..,..,M_NOWAIT) was being called without checking
for return values.  It just so happens that in the cases where it is likely
to fail, it is okay to change the M_NOWAIT to M_WAITOK -- and all will
be well.  This problem was manfest as a panic very regularly on a 4MB
system right after bootup.
1995-08-08 05:14:40 +00:00
Bruce Evans
1856afe955 Sleep on a better address to wait for output to drain out of the
hardware.  Set the sleep-on flag for the address so there is more
than a small chance that the sleep address is actually used (this
used to work by timing out).  Don't bother clearing the sleep-on
flag after a timeout here or elsewhere since leaving it set just
generates a few null calls to wakeup().
1995-07-31 21:10:36 +00:00
Bruce Evans
9fa18570a2 Obtained from: partly from ancient patches of mine via 1.1.5
Introduce TS_CONNECTED and TS_ZOMBIE states.  TS_CONNECTED is set
while a connection is established.  It is set while (TS_CARR_ON or
CLOCAL is set) and TS_ZOMBIE is clear.  TS_ZOMBIE is set for on to
off transitions of TS_CARR_ON that occur when CLOCAL is clear and
is cleared for off to on transitions of CLOCAL.  I/o can only occur
while TS_CONNECTED is set.  TS_ZOMBIE prevents further i/o.

Split the input-event sleep address TSA_CARR_ON(tp) into TSA_CARR_ON(tp)
and TSA_HUP_OR_INPUT(tp).  The former address is now used only for
off to on carrier transitions and equivalent CLOCAL transitions.
The latter is used for all input events, all carrier transitions
and certain CLOCAL transitions.  There are some harmless extra
wakeups for rare connection- related events.  Previously there were
too many extra wakeups for non-rare input events.

Drivers now call l_modem() instead of setting TS_CARR_ON directly
to handle even the initial off to on transition of carrier.  They
should always have done this.  l_modem() now handles TS_CONNECTED
and TS_ZOMBIE as well as TS_CARR_ON.

gnu/isdn/iitty.c:
Set TS_CONNECTED for first open ourself to go with bogusly setting
CLOCAL.

i386/isa/syscons.c, i386/isa/pcvt/pcvt_drv.c:
We fake carrier, so don't also fake CLOCAL.

kern/tty.c:
Testing TS_CONNECTED instead of TS_CARR_ON fixes TIOCCONS forgetting to
test CLOCAL.  TS_ISOPEN was tested instead, but that broke when we disabled
the clearing of TS_ISOPEN for certain transitions of CLOCAL.

Testing TS_CONNECTED fixes ttyselect() returning false success for output
to devices in state !TS_CARR_ON && !CLOCAL.

Optimize the other selwakeup() call (this is not related to the other
changes).

kern/tty_pty.c:
ptcopen() can be declared in traditional C now that dev_t isn't short.
1995-07-31 21:02:00 +00:00
Bruce Evans
f3b37f91c1 Improve input flow control.
Use input buffer watermarks of TTYHOG-512 (high) and (high)*7/8
(low) instead of TTYHOG/2 (high) and TTYHOG/5 (low) to agree with
some drivers.  512 is magic and some things depended on TTYHOG/2
>= TTYHOG-512 to work; now they depend on the 512 magic not changing
and TTYHOG-512 being significantly larger than 0.  This should be
handled in ttsetwater().

Separate the decision about whether to do input flow control from
doing it.  ttyblock() now just starts input flow control (hardware
and/or software) and there is a new function ttyunblock() to stop
it.  The decisions are the same except for the watermark changes
and allowing for input expansion for PARMRK.

When flushing input, try harder at first to send a start character
if required, but give up if the first attempt fails.

cy.c, rc.c, sio.c:
Simplify: let ttyinput() handle input flow control if it is not
being bypassed.  Use ttyblock() to start flow control otherwise.

rc.c:
Use same input flow control test as elsewhere: test in a more
efficient order and start flow control at >= highwater instead of
at > highwater.
1995-07-31 18:29:51 +00:00
Bruce Evans
611c22c117 Don't let IXOFF or ECHONL stop the setting of TS_CAN_BYPASS_L_RINT. IXOFF
is handled at a low level, and ECHONL only applies if ICANON is set,
although tty.c sometimes bogusly applies it when ICANON isn't set.
1995-07-29 08:33:13 +00:00
Bruce Evans
4ce7d32178 Always wake up writers after clearing TS_BUSY. This will soon be
essential when I fix excessive wakeups for output-below-low-water.
In cy.c and sio.c, wake up via the driver start routine to also
eliminate duplicated code involving the clearing of TS_TTSTOP.

Always (except in code to be replaced soon) call driver start
routine directly instead of going through ttstart().
1995-07-29 04:05:57 +00:00
Bruce Evans
abe8bea470 Obtained from: partly from ancient patches of mine via 1.1.5
Give names to the magic tty i/o sleep addresses and use them.  This makes
it easier to remember what the addresses are for and to keep them unique.
1995-07-22 16:45:22 +00:00
Bruce Evans
a16721a13a Move the inline code for waking up writers to a new function
ttwwakeup().  The conditions for doing the wakeup will soon become
more complicated and I don't want them duplicated in all drivers.

It's probably not worth making ttwwakeup() a macro or an inline
function.  The cost of the function call is relatively small when
there is a process to wake up.  There is usually a process to wake
up for large writes and the system call overhead dwarfs the function
call overhead for small writes.
1995-07-22 01:30:45 +00:00
Bruce Evans
2ce42987d3 Obtained from: partly from ancient patches of mine via 1.1.5
Move static termioschars() from a couple of drivers to tty.c.  Now there
is only one copy of ttydefchars[].
1995-07-21 22:52:01 +00:00
Bruce Evans
d800e06858 Fix races in scstart(). q_to_b() wasn't called at spltty(), so there
were two races:
- q_to_b() might unexpectedly return 0 (e.g, after a keyboard signal
  flushes the output queue and isn't echoed).  ansi_put() interprets
  0 bytes as 4GB...
- more output (e.g. for echoes) might arrive afer q_to_b() returns 0.
  Then scstart() returns presumably and the new output might not be
  handled for a long time.

Remove unused function scxint().

Fix prototypes (foo() isn't a prototype).
1995-07-11 18:34:30 +00:00
Bruce Evans
f2fb20ef41 Speed up the inner loop of ansi_put() by a few percent.
syscons' output is now only about 4-5 times slower than I want.
It loses a factor of 2 for scrolling output by unnecessarily copying
the screen buffer, a factor of 4/3 for dumb OPOST processing, and
a factor of 3/2 for clist processing.
1995-07-11 17:59:22 +00:00
Bruce Evans
aa96081f8b Fix error logging:
- get the timeout countdown right
- report everything before turning timeouts off.
1995-07-05 14:30:07 +00:00
Andrey A. Chernov
5575abefeb Fight with hanging modems continued:
return EIO after t_timeout expired instead infinite looping in "siotx"
in comparam, consuming CPU time.
1995-06-28 17:58:14 +00:00
Bruce Evans
33dc7e1b84 Reduce timeout frequency from `hz' to 0 if no ports are open or to 1 if
no ports are active, provided there are no polled ports and no
`LOSESOUTINTS' ports.  Do a little more in the interrupt handler instead.
This is a little less efficient if there are are many active ports but
a little more efficient otherwise.  Polled ports are ones with no irq
specified (as before).  `LOSESOUTINTS' ports are ones with 0x08 set in
their config flags.  Unless this flag is set, it will now take up to one
second to recover from lost output interrupts, if any.  Some 8250s and
16450s lose output interrupts.

Improve output buffering: copy the clist buffer to 2 linear buffers if
necessary and possible instead of to 1.  Handle an arbitrary queue of
buffers in the interrupt handler.  Check for waking up sleepers after
copying characters out of the clist buffer instead of before.

Delay translation of TIOCM_DTR to MCR_DTR etc. so that the top level
routines are more machine independent.

Fix bogus device register in unused code.
1995-06-25 04:51:01 +00:00
Bruce Evans
5dce8a63fc Don't convert \n to \r\n in pccnputc(). This is the responsibility of
cnputc().
1995-06-14 05:16:12 +00:00
Rodney W. Grimes
d3628763db Merge RELENG_2_0_5 into HEAD 1995-06-11 19:33:05 +00:00
Rodney W. Grimes
9b2e535452 Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
Søren Schmidt
ad828abe4b Fixed problem with "char" cursor..
Submitted by:	ache
1995-05-21 18:30:05 +00:00
Rodney W. Grimes
b2b795f07c Fix -Wformat warnings from LINT kernel. 1995-05-11 19:26:53 +00:00
Bruce Evans
d81fba0cda Add variable `idelayed' and macros setdelayed() and schedsofttty()
to access it.  setdelayed() actually ORs the bits in `idelayed' into
`ipending' and clears `idelayed'.

Call setdelayed() every (normal) clock tick to convert delayed
interrupts into pending ones.

Drivers can set bits in `idelayed' at any time to schedule an interrupt
at the next clock tick.  This is more efficient than calling timeout().
Currently only software interrupts can be scheduled.
1995-05-11 07:44:40 +00:00
Rodney W. Grimes
2d9d0204f7 Fix -Wformat warnings, still need to do something about %b and pointer
type args.
1995-05-09 12:26:00 +00:00
Andrey A. Chernov
e73e1e3715 Add hook for pstat -t 1995-05-07 23:00:02 +00:00
Joerg Wunsch
85827d9c13 Restructured the floppy tape probe.
The ``flags 1'' in the fdc line is now only needed for owners of an
Insight tape (perhaps there aren't any?  Mine is disfunctional).  All
other probes are safe wrt. to the motor-control line of floppy disk
drives.  Document the flag in LINT finally.
1995-05-06 19:34:28 +00:00
Søren Schmidt
e5c5c58924 Added nsccons variable for use by pstat
Submitted by:	 ache
1995-04-28 09:10:56 +00:00
Søren Schmidt
5130ec746f Added mark_all() call so that screen is proberly updated
when scroll-lock history is disengaged.
1995-04-25 10:22:28 +00:00
Bruce Evans
8d98ed564c Move declarations of console functions to cons.h (they should be
config(8)ed).

Update other misplaced prototypes.
1995-04-23 12:41:57 +00:00
Bruce Evans
38994061cf Correct the type of the `c' arg to pccnputc().
Move declarations of console functions to cons.h so that they can't be
defined inconsistently in several places.  They should be config(8)ed.
1995-04-23 10:15:42 +00:00
Julian Elischer
999422d707 Reviewed by: no-one yet, but non-intrusive
Submitted by:	julian@tfs.com
Obtained from:	written from scratch

slight changes to make space for devfs..
(also conditional test code in i386/isa/fd.c)

===================================================================
RCS file: /home/ncvs/src/sys/sys/malloc.h,v
retrieving revision 1.7
diff -r1.7 malloc.h
113a114,117
> #define M_DEVFSMNT    62      /* DEVFS mount structure */
> #define M_DEVFSBACK   63      /* DEVFS Back node */
> #define M_DEVFSFRONT  64      /* DEVFS Front node */
> #define M_DEVFSNODE   65      /* DEVFS node */
184c188,192
<       NULL, NULL, NULL, NULL, NULL, \
---
>       "DEVFS mount",  /* 62 M_DEVFSMNT */ \
>       "DEVFS back",   /* 63 M_DEVFSBACK */ \
>       "DEVFS front",  /* 64 M_DEVFSFRONT */ \
>       "DEVFS node",   /* 65 M_DEVFSNODE */ \
>       NULL, \
Index: sys/mount.h
===================================================================
RCS file: /home/ncvs/src/sys/sys/mount.h,v
retrieving revision 1.16
diff -r1.16 mount.h
100c100,101
< #define       MOUNT_MAXTYPE   15
---
> #define MOUNT_DEVFS   16      /* existing device Filesystem */
> #define       MOUNT_MAXTYPE   16
118a120
>       "devfs",        /* 15 MOUNT_DEVFS */ \
Index: sys/vnode.h
===================================================================
RCS file: /home/ncvs/src/sys/sys/vnode.h,v
retrieving revision 1.19
diff -r1.19 vnode.h
61c61
<       VT_UNION, VT_MSDOSFS
---
>       VT_UNION, VT_MSDOSFS, VT_DEVFS
1995-04-20 03:18:19 +00:00
Bruce Evans
33242876a4 Fix initializations of kdc_state for serial consoles.
Change order of RTS flow control tests so that less tests are required
in the usual case.

Clean up parts of previous commits.  Cosmetic.
1995-04-15 21:45:16 +00:00
Garrett Wollman
ae60406da6 Forgot two things in yesterday's massive devconf update:
initialized class for sio
don't bogusly re-initialize it in sio_registerdev()
1995-04-13 15:03:29 +00:00
Andrey A. Chernov
3cf91c530d Move setcompat code to another place, initial/locked devices
not supposed to work with old style ioctls
1995-04-13 11:11:11 +00:00
Andrey A. Chernov
d17ad80fda Comment out ttcompat via COMPAT_SUNOS too
Fix error handling initial/callout devices
1995-04-13 09:22:40 +00:00
Poul-Henning Kamp
04a6a5a9ac ttsetcompat is a '#ifdef COMPAT_43' feature.
Dropping into the debugger when a break comes down the serial line is a
>MISFEATURE (1st class)< and has been put under it's own #ifdef.  This
should be a magic sequence of chars instead.
1995-04-12 22:00:41 +00:00
Garrett Wollman
6c0081e92b Add a class field to devconf and mst drivers.
For those where it was easy, drivers were also fixed to call
dev_attach() during probe rather than attach (in keeping with the
new design articulated in a mail message five months ago).  For
a few that were really easy, correct state tracking was added as well.
The `fd' driver was fixed to correctly fill in the description.
The CPU identify code was fixed to attach a `cpu' device.  The code
was also massively reordered to fill in cpu_model with somethingremotely
resembling what identifycpu() prints out.  A few bytes saved by using
%b to format the features list rather than lots of ifs.
1995-04-12 20:48:13 +00:00
Andrey A. Chernov
2178b9bb49 Call new ttsetcompat() function for proper working
old v7 ioctls with locking bits.
1995-04-11 17:58:09 +00:00
Rodney W. Grimes
74fa89f4f5 Correct recalibrate/seek code at attach time so that we do not get
all the ``fdc0: ready for output in input'' messages when probing
for ft devices.

Submitted by:	Steve Gerakines <steve2@genesis.tiac.net>
1995-04-06 07:20:16 +00:00